This app supplements the online version and is included with the MKSAP 18 Digital and MKSAP 18 Complete subscriptions. Simply log in with your ACP or MKSAP 18 username and password. If you need assistance setting up your account, visit ACP Online. Some functionality within the app requires an active internet connection.

Your suggestions for future updates and enhanced features are welcome at

The new Medical Knowledge Self-Assessment Program® (MKSAP® 18) provides you with the most current and critical information in the core of internal medicine and its subspecialties so you can stay aware of what you need to know as a practicing physician in internal medicine today. MKSAP 18 consists of well-researched text sections and 1,200 exam-like multiple-choice questions along with hundreds of figures, charts, and tables to enhance your learning experience. MKSAP 18's original, high-quality questions comprise patient-based clinical scenarios based on the latest evidence. Each question will challenge your decision-making, help you discover areas of strength, and target areas for you to update or acquire new knowledge. This app enables subscribers to MKSAP 18 Digital or MKSAP 18 Complete to read all of the text and answer all of the questions offline. When you are connected to the Internet, answers will sync automatically with the online version.

About ACP

The publisher of MKSAP 18, American College of Physicians (ACP), is a diverse community of internal medicine specialists and subspecialists united by a commitment to excellence. Internists apply scientific knowledge and clinical expertise to the diagnosis, treatment, and compassionate care of adults across the spectrum from health to complex illness. With 154,000 members in countries across the globe, ACP is the largest medical-specialty society in the world. ACP and its physician members lead the profession in education, standard-setting, and the sharing of knowledge to advance the science and practice of internal medicine.

What’s New

Version 1.2.5

Bug fixes

Ratings and Reviews

3.6 out of 5
9 Ratings
9 Ratings
Dude-e ,

Good app with room to grow

Good design and easy to use. Liked how the tables, images and questions are integrated into the text. Dark mode is appreciated, too.

Suggestions: if possible, please add the ability to highlight text in the book or questions. Changing fonts would be nice, too.

rabinovich2006 ,


Really great app, but reading text and highlighting important parts is what my generation of doctors do! We have color system, we have to take notes etc.. Please please work on “highlight” feature!! I know it is challenging but we need it!

Alton Doody ,

Needs work - has bugs.

I hope the developer reads this because there is no in-
app ability to actually contact them and the link to the website is for him MKSAP 17.

Mostly works well although on the "recently reviewed" page The text titles were left blank. The worst and most annoying thing is that you cannot save multiple notes. The most I can save us two notes and when I try to save a third it deletes one of the others.

Please fix.

Addendum - After version 1.2.1 today, it won't open at all.

Developer Response ,

We would love to help resolve the issues you're experiencing with the app. Please contact ACP Customer Service at so we know which account to investigate and so we can gather more information about your specific device.


American College of Physicians
113.5 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
You must be at least 17 years old to download this app.
Infrequent/Mild Sexual Content and Nudity
Frequent/Intense Medical/Treatment Information
© 2018 American College of Physicians, Inc


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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